When we first showed you the Arnold & Son Ultra-Thin Tourbillon Escapement, or UTTE, live from Basel World, details were scarce. We knew that it was the thinnest tourbillon available on the market today and that it would be limited in production, but now we have all the details for you, including live photos of the watch in both metals and the official pricing and availability information. This is a seriously cool watch, even if you're not typically one for tourbillons.

When we first showed you the Arnold & Son Ultra-Thin Tourbillon Escapement, or UTTE, live from Basel World, details were scarce. We knew that it was the thinnest tourbillon available on the market today and that it would be limited in production, but now we have all the details for you, including live photos of the watch in both metals and the official pricing and availability information. This is a seriously cool watch, even if you're not typically one for tourbillons.

Closer Look At The UTTE's 14mm Tourbillon

Arnold & Son has released a flurry of new, technically-impressive movements over the last year or two, one of which is the calibre A&S8200 inside the UTTE. It is entirely in-house, only 2.97mm thick, and houses a 14mm one-minute tourbillon at 6 o'clock that acts as the small seconds indicator. Once cased-up, the entire UTTE is still only 8.34mm thick, which makes it the thinnest tourbillon currently available. Through two barrels, it has an impressive 80-hour power reserve.

The Ornate Finishing On The Rose Gold UTTE

The More Modern Finishing On The Palladium UTTE

Both dial and movement are beautifully finished, with the palladium case finished in a more modern style and the rose gold UTTE having more ornate decoration. For the rose gold UTTE the dial has rayonattes Côtes de Genève on the silver dial and hand-engraved decoration on the bridged. In contrast, the palladium UTTE has a darker grey dial with straight Côtes de Genève and the movement is more simply decorated (though still finished beautifully). On both versions, the tourbillon itself is very modern looking and feels much more wearable and under-the-radar than most tourbillons you see today.

The Palladium UTTE On The Wrist

The 42mm case is certainly on the large size for a dress watch like this, but the watch wears remarkably well anyway. Because it is so thin, you don't have to worry about getting it under your cuff, and the tourbillon is understated enough that people won't be gawking at it in the 42mm case. Overall, the UTTE combines a lot of the things we love about traditional watchmaking and finishing with a distinctly modern perspective.

The UTTE comes in both rose gold and palladium, priced at $69,050 and $59,950 respectively. Each is limited to only 50 pieces total. For more information, please visit Arnold & Son.